Fastening-inserting maschine and gauge therefor



Feb. 19, 1929. 1,702,389

F. L... MACKENZIE FASTENING INSERTING MACHINE AND GAUGE THEREFOR Filed March 16, 1926 Fig.1.

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74 /NVENTUR Patented Feb. 19, 1929.

UNITED STATES PATENT OFFICE.

FRED L. MACKENZIE, OF BEVERLY, MASSACHUSETTS, ASSIGNOR TO UNITED SHOE MACHINERY CORPORATION, OF PATERSON, NEW JERSEY, A CORPORATION OF NEW JERSEY.

FASTENING-INSERTING MACHINE AND GAUGE THEREFOR.

Application filed March 16, 1926. Serial No. 95,141.

This invention relates to work-positioning devices and is illustrated herein as embodied in a fastening-inserting machine provided with gauge mechanism particularly adapted for use in all-around nailing in the manufacture of boots and shoes.

\Vhen inserting fastenings by a fasteninginserting machine, it is at times desirable to control the positions at which different fastenings are inserted by gauging from different elements of a work piece, for example when nailing the outsoles to all-around nailed shoes. In the nmnufacture of allaround .nailed shoes, it is usual to die out or trim the outsoles approximately to their final forms before they are attached to the shoes. In applying a sole to a shoe of this kind, the torepart and shank of the outsole are easily located in proper relation to the insole and shoe upper, but by reason of the sole having stretched or warped, .its heel-seat may not line up perfectly with the heel-seat portions of the other shoe parts. Accordingly, it is usual to leave sufficient surplus stock at the heel'seat of the sole to allow for any such irregularities. Consequently it is best to gauge from the counter portion of the shoe upper while inserting the heel-seat nails. \Vhile inserting nails in the shank and forepart of the shoe, however, it is best to gauge from the edge of the outsole rather than from the shoe upper. To do this in the past has necessitated performing the all-around nailing in two 0 erations.

According y, the present invention provides an improved work-positioning device adapted, for example, for use in all-around nailing of boots and shoes by which the ganging during a portion of the operation may be done from one part of the work, for example from the edge of an outsole, and the gauging during another portion of the operation may be work, for example from the shoe upper. As illustrated, the work-positioning device is provided with two gauge members arranged for alternative use and so related that the gauging may be shifted from one to the other of these members without breaking the continuity of the fastening'inserting operation;

done from another part of the An important feature of the invention comprises an arrangement whereby two gauge members are yieldingl urged toward the work, means being provi ed 0 erable alternatively to lock one or the ot er of the gauge members in gauging position, While permitting movement of that gauge member which is not locked. Thus the gauge member which is not locked and which accordingly is not being utilized at any instant is always in engagement with the work so that upon looking it and unlockingthe first gauge member, the operation can be continued without any break or irregularity in the line of fastenings.

\Vhile gauging from the counter portion of the shoe upper in heel-seat nailing, it is necessary to vary the position of the gauge in a direction at right angles to the surface of the heel-seat in accordance with the thickness of the sole which is being attached. Having in mind the fact that in nail-inserting machines, as used in the manufacture of boots and shoes, the shoe is ordinarily positioned during the fastening-inserting opera tion with its sole upward and bearing against a fixed presser plate or abutment with which the machine is provided, it will be apparent that the gauge member which bears against the counter portion of the shoe upper must be lower when a double or a thick sole is being attached than when a single or a thin sole is being attached. Gauge members have heretofore been pivoted about a horizontal axis to permit the gauge to rise and fall in accordance with the thickness of the sole. This pivoting movement varies the angular relation of the gauge member to the surface of the shoe upper to an extent which, under some circumstances, for example when passing from a very light to a very heavy sole, is not desirable. It is accordingly a further object of the invention to provide a gauge mechanism which will permit such vertical movement of the gauge without changing the angular relation of the gauge to the work. To this end the illustrated machine is provided with a gauge member arranged for en gagement with the counter portion of a shoe upper during the heel-seat nailing operation and carried by a parallel-motion device by means of which the gauge may be swung upwardly or downwardly without changing its angula J relation to the work.

With the above and other objects and features in view, the invention will now be de scribed in connection with the accompanying drawings and pointed out in the claims.

In the drawings,

Fig. 1 is a side elevation of the head of a fastening-inserting machine embodying the work-positioning device of the present invention;

2 is a side elevation, on a larger scale, showing the worlrpositioning device at tached to the presser plate or abutment of the machine of Fig 1;

Fig. 3 is a plan view of the work-positioninn" device of Fig. 2;

Fig. 4 is a perspective view of the upper gauge member and Fig. 5 of the lower gauge member of the positioning device, with parts broken away. arranged particularly to show details of the mounting and locking means for the gauging members;

Fig. 6 is a perspective view of a portion of the locking means for the gauge members;

Fig. 7 illustrates the positioning of a shoe by the lower gauge member which eng ree the counter portion of a shoe upper (in mg the heelseat nailing operation;

Fig. 8 illustrates the positioning of a shoe for the insertion of nails in its forepart while the shoe is positioned by the upper gauge member bearing against the edge of the outsole; and

Fig. 9 illustrates a shoe with its outsole temporarily secured to its upper and trimmed substantially to its final form in the forepart and shank but with surplus stock left at its heel-seat portion.

bile the invention may be embodied in various types of fasteningdnserting machlnes, it is illustrated herein as embodied in a loose-nailing machine of the type disclosed in Letters Patent of the United States No. 1,030,775, granted June 25, 1912, on an application of George Goddu. The machine is provided with suitable fasteningdnserting instrumentalities arranged to insert fastenings in succession in a work piece aeld by a horn 12 against a presscr plate or abutment 14: and fed step by step past the fasteninginserting' instrumentalities between the inserion of successive fastenings. The illustrated machine is provided with novel gauge mechanism illustrated as a whole at 16 in Fig. 1 and in detail in the other figures. As illustrated particularly in Figs. 2 and 3, the gauge mechanism is carried by a bracket 18 secured by bolts 20, 22, 24 to a plate 26 secured to the machine frame and carrying also the presser plate or abutment 14. Mounted for sliding movement in ways carried by bracket 18 is a carrier 28 (Figs. 2, 3 and a) urged forwardly by a grasshopper spring 30. The carrier 28 is provided with a finger 32 projecting through an opening between two parts of bracket 18 positively to limit the sliding movement of carrier 28 in both directions. Mounted upon a support 29 secured to the forward extremity of carrier 28 by a screwand-slot connection is a gauge roll 34: formed to engage the edge of a sole during the nailinserting operation. In order to lock gauge roll Si l in operative position, linger 32 of carrier 28 is provided with a downwardly extending lug 36 preferably of hard metal ar ranged for engagement with a surface 38 formed upon a lever 40 fulcrumed at 12 to bracket 18. A- second lever 44: is also fulcrumed at 42 to bracket 18, the two levers being connected by a compression spring 46 so that the forward end of lever 40 is moved yicldingly upwards when lever islis rocked in a clockwise direction, as shown in Fig. 2. Lever 44 carries an. adjustable stop member -18 engaging an arm 50 of lever 40 so that the forward end of lever 40 is moved downwardly positively when lever 44 is swung in a clockwise direction, as viewed in F 2. As illustrated particularly in Fig. 1, suitable connections are provided including a link 52, a bell crank lever 54-, and a treadlc rod 56 whereby lever 44 may be swung in one direction or the other through the operation of a treadle connected to red 56.

Slidably connected to bracket 18 is a sec ond carrier 60 (Figs. 2 and 5) having mounted at its forward end a second gauge member illustrated as a roll 62 positioned to engage the shoe upper adjacent to the outsole. A spring 64 anchored at one end to carrier 60 and at the other to bracket 18 tends to move carrier 60 and gauge roll 62 toward the work. In order to lock gauge member 62 against movement while that gauge member is in operative relation to the work, carrier (36 is provided with two sets of oppositely directed teeth 66. 68. Teeth 66 are positioned for engagement with a tooth 7 0, carried by the lever 40, when that lever is in its lower position, as illustrated in Fig. 2, so as to prevent rearward movement of gauge member 62. To prevent forward movement of gauge member 62 while it is being utilized to position the work, a lever 72 is provided also fulcrumcd at 42 to bracket 18. Lever 72 has a downwardly extending tooth 74: arranged for engagement with one of teeth 68 and is urged downwardly by a spring 76, its movement under the influence of spring 7 6 being limited by a lug 78 (Figs. 3 and 6) carried by lever 40. The engagement of lever 72 with lug 78 is such that lever 7 2 at all times tends to follow lever 40 and does follow lever ll) except as there will be at times a small variation in the relative positions of the two levers due to 1,7oa,eae 3 diflerences in the manner in which teeth 70 and 74 engage with teeth 66 and 66, .respectively.

The mechanism which has just been described is such that when gauge 34 is unlocked, it always tends to move forward to a definite position determined by the engagement of finger 32 with bracket 18 and when locked is locked in that position by the engagement of surface 38 of lever 40 with lug 36. Thus gauge 34 has but one operative position. On the other hand gauge 62 may be locked against both forward and rearward movement in whatever position it may happen to be when lever 44 is moved in a clockwise direction (as viewed in Fig. 2) so as to bring teeth 70 and 74 into engagement with teeth 66 and 68. While the nailing about the i'orepart and shank is performed under the control of gauge 34 gauging from the edge 7 3 of the sole, gauge 62 will travel back and forth in accordance with the shape of the shoe upper. Then when the heel-seat is reached, where the sole projects, as shown at 7 5 (Fig. 9), a variable amount, the operative by means of the treadle attached to rod 56, lowers levers 40 and 7 2 so as to lock gauge 62 in the position which it then occupies against the counter portion of the shoe upper, the nailing operation being cont-inued'without pause and the heel-seat nails being gauged from the counter portion of the shoe upper. In order to permit variation in the vertical position of gauge 62'as may be necessary y reason of variations in the thickness of the soles of shoes operated upon,gauge 62 is carried by a arallel-motion device comprising a lever 80 ulcrumed at 84 to carrier 60. Pivoted at 86 on carrier is a link 88, the forward ends of lever 80 and link 88 being connected by a link 90 to which gauge roll 62 is pivoted at 92. A bolt 94, the head of which engages carrier 60, passes through an opening in the rear end of lever 80, as shown in Fig. 2. A lighter spring 96 anda heavier spring 98 surrounding bolt 94 engage a pair of washers 100, 102 contacting with lever 80 and at their other ends engage carrier 60 and a nut 104 threaded upon 0 t 94, respectively. Thus by turning the nut 104 upon bolt 94, the position of gauge 62 can be vertically adjusted while at the same time gau e 62 may have a certainuamount, of upwar and downward movement controlled by the thickness of the sole and the shape of the shoe upper. During such movement and during the adjustment of roll 62', however, the angular relation of roll 62 to the work remains unchanged.

Having described the invention, what I claim as new and desire .to secure by Letters Patent of the United States is z 1. A work-positioning device comprising a movable gauge member arranged to engage 2. A work-positioning device comprising.

a pair of movable. gauge members arrange to engage different portions of a shoe to position the shoe while an operation is performed thereon, said gauge members being mounted in such a manner that each of them may be fixed against movement toward and from the work while the other is yieldingly urged toward the work.

3. A work-positioning devicefor a fastening-inserting machine comprising an upper and a lower gauge member arranged to engage a shoe and position it as fastenings are inserted therein, said gauge members being mounted so that the lower gauge member is yieldingly urged laterally, in a direction toward the work while the upper gaugememher is fixed and controls the position of the work.

4. A work-positioning device. comprising a gauge member arranged to engage the edge of the sole of a shoe to position the shoe relative to the operating instrumentalities of a machine, a second gauge member arrangedto engage the upper of the shoe adjacent to the sole, and means operable to lock eitherof said gauge members against movement ina direction normal to the edge of thework while permitting such movement of the other gauge fmember. l

5. A work-positioning device comprising a gauge member arranged to engage the .edge of the sole of a shoe, a second gauge member arranged to engage the upper of the shoe adjacent to the sole, means arranged to urge the second gauge member against the surface of the sole, and means for rendering the two gauge members alternatively operative to position the shoe.

6. A work-positioning device comprising a auge member arranged to engage the edge 0 the sole of a shoe, a second gauge member arranged to engage the upper of the shoe adjacent to the sole, a spring urging the second gauge member against the surface of the sole, and means for rendering the two gauge members alternatively operative to position the shoe. 7. A work-positioning device comprising a supporting bracket, a pair of gauge mema pair of bers movably carried thereby, springs for the gauge members each tending to move forward one of the gauge members, and lockin means arranged alternatively to 100k0i5161 of the gauge members against rearward movement while permitting rearward movement of the other gauge member.

8. A work-positioning device comprising a supporting bracket, a pair of slides carried thereby, a gauge member carried by each slide, a pair of springs for the slides each tending to move forward one of the slides and the gauge member carried'thereby, and locking means arranged for movement alternatively into engagement with one or the other of the slides to lock one of thegauge members against rearward movement while permitting movement of the other gauge member.

9. A work-positioning device having a first gauge member arranged to position a shoe as tastenings are inserted therein, a second gauge member arranged to position the shoe as other fastenings are inserted therein and yieldingly urged towards the shoe while the position of the shoe is controlled by the first gauge member, locking means holding the first gauge member against movement during the insertion of fastenings, and means for unlocking the first gauge member and locking the second gauge member in the position which it occupies at the instant the first gauge member is unlocked.

10. A work-positioning device having a first gauge member arranged to engage the edge of the sole of a shoe to position the shoe as tastenings are inserted in its shank and about its torepart, a second gauge member arranged to engage the upper of the shoe adjacent to the sole and yieldingly urged towards the shoe while the position of the shoe is controlled by the first gauge member, locking means holding the first gauge member against rearward movement during the insertion of fastenings, and means for unlocking the first gauge member and locking the second gauge member in the position which it occupies at the instant the first gauge member is unlocked.

11. A fastening-inserting machine having a presser plate, means for inserting a row of fastenings in a shoe clamped against the presser plate, and a work-positioning device arranged to control the distance from the edge of the shoe at which the tastenings are inserted, said device comprising av gauge member arranged to engage the edge of the sole of a shoeto control the position at which fastenings are inserted, a second gauge member to engage the upper of the shoe adjacent to the sole to control the position at which other fastenings are inserted, and means operable to render the gauge members alternatively operative.

12. A fastening-inserting machine having a presser plate, means for inserting a row of itastenings. in a shoe clamped against the presser plate, and a work-positioning device arranged to control the distance from the edge of the shoe at which the fastcnings are inserted, said device comprising a gauge member arranged to engage the edge of the sole of the shoe to control the position at which the fastenings are inserted in the shank and about the forepart of the shoe, a second gauge member to engage the counter portion of the shoe adjacent to the sole to control the position at which the heel-seat fastenings are inserted, and means operable to render the gauge members alternatively operative.

13. A work-positioning device comprising a pair of gauge members one of which is mounted for movement toward and from the work and the other of which is mounted both for movement toward and from the work and for movement in a direction substantially at right angles thereto, said last-named gauge member being constructed and arranged to maintain its angular relation to the work unchanged as it partakes of said movement, and means for locking each of said gauge members against movement toward and from the work while permitting such movement of the other gauge member.

14.. A work-positioning device comprising a gauge member arranged to engage the edge or the sole of a shoe to position the shoe relatively to the operating instrumentalities of the machine, a parallel motion device, a second gauge carried thereby and arranged to engage the upper of a shoe adjacent to the edge of the sole, means yieldingly urging the gauges toward the shoe, and means for locking one of the gauge members against movement towards or away from the shoe while permitting such movement of the other gauge member. I

15. A work-positioning device comprising a lever, a gauge carried thereby and arranged to engage the upper of a shoe adjacent to the edge of the sole, the effective edge of said gauge being oblique to the plane oi the sole of the shoe, means yieldingly urging the gauge toward the surface of the sole, and means for maintaining constant the oblique angular relation of the gauge to the sole as the position of the gauge is varied under the control of said yielding means.

16. A work-positioning device comprising a parallel motion device, a gauge carried thereby and arranged to engage the upper of a shoe at an oblique angle to the plane of the sole thereof, and means yieldingly urging the gauge toward the surface of the sole.

17. A work-positioning device comprising a bracket, a lever and a link both pivoted to the bracket, a second link pivoted to corresponding ends of the lever and the first link and arranged to maintain the lever and the first link in parallel relation, a gauge i i bet carried by the second link, and a. pair of opposed springs engaging the end of the lever remote from the ange and permitting rocking movement of the lever but tending always to return the lever to a definite posi- 15 tion.

In testimony whereof I have signed my name to this specification.

FRED L. MACKENZIE. 

